Qihao Shang
/
DHT-11
dht11
Fork of DHT-11 by
main.cpp@1:d9be5eb8bdeb, 2014-04-09 (annotated)
- Committer:
- lanmaomao7
- Date:
- Wed Apr 09 20:11:10 2014 +0000
- Revision:
- 1:d9be5eb8bdeb
- Parent:
- 0:6e5d3c6e8715
dht11
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
umairaftab | 0:6e5d3c6e8715 | 1 | #include "mbed.h" |
umairaftab | 0:6e5d3c6e8715 | 2 | #include "DHT.h" |
umairaftab | 0:6e5d3c6e8715 | 3 | |
umairaftab | 0:6e5d3c6e8715 | 4 | DigitalOut myled(LED1); |
umairaftab | 0:6e5d3c6e8715 | 5 | |
lanmaomao7 | 1:d9be5eb8bdeb | 6 | DHT sensor(PTC7,SEN11301P); // Use the SEN11301P sensor |
umairaftab | 0:6e5d3c6e8715 | 7 | |
umairaftab | 0:6e5d3c6e8715 | 8 | int main() { |
umairaftab | 0:6e5d3c6e8715 | 9 | int err; |
umairaftab | 0:6e5d3c6e8715 | 10 | printf("\r\nDHT Test program"); |
umairaftab | 0:6e5d3c6e8715 | 11 | printf("\r\n******************\r\n"); |
umairaftab | 0:6e5d3c6e8715 | 12 | wait(1); // wait 1 second for device stable status |
umairaftab | 0:6e5d3c6e8715 | 13 | while (1) { |
umairaftab | 0:6e5d3c6e8715 | 14 | myled = 1; |
umairaftab | 0:6e5d3c6e8715 | 15 | err = sensor.readData(); |
umairaftab | 0:6e5d3c6e8715 | 16 | if (err == 0) { |
umairaftab | 0:6e5d3c6e8715 | 17 | printf("Temperature is %4.2f C \r\n",sensor.ReadTemperature(CELCIUS)); |
umairaftab | 0:6e5d3c6e8715 | 18 | printf("Temperature is %4.2f F \r\n",sensor.ReadTemperature(FARENHEIT)); |
umairaftab | 0:6e5d3c6e8715 | 19 | printf("Temperature is %4.2f K \r\n",sensor.ReadTemperature(KELVIN)); |
umairaftab | 0:6e5d3c6e8715 | 20 | printf("Humidity is %4.2f \r\n",sensor.ReadHumidity()); |
umairaftab | 0:6e5d3c6e8715 | 21 | printf("Dew point is %4.2f \r\n",sensor.CalcdewPoint(sensor.ReadTemperature(CELCIUS), sensor.ReadHumidity())); |
umairaftab | 0:6e5d3c6e8715 | 22 | printf("Dew point (fast) is %4.2f \r\n",sensor.CalcdewPointFast(sensor.ReadTemperature(CELCIUS), sensor.ReadHumidity())); |
umairaftab | 0:6e5d3c6e8715 | 23 | } else |
umairaftab | 0:6e5d3c6e8715 | 24 | printf("\r\nErr %i \n",err); |
umairaftab | 0:6e5d3c6e8715 | 25 | myled = 0; |
umairaftab | 0:6e5d3c6e8715 | 26 | wait(15); |
umairaftab | 0:6e5d3c6e8715 | 27 | } |
lanmaomao7 | 1:d9be5eb8bdeb | 28 | } |
lanmaomao7 | 1:d9be5eb8bdeb | 29 | float Humidity_Sensor_Temperature(){ |
lanmaomao7 | 1:d9be5eb8bdeb | 30 | int err; |
lanmaomao7 | 1:d9be5eb8bdeb | 31 | wait(1); |
lanmaomao7 | 1:d9be5eb8bdeb | 32 | err = sensor.readData(); |
lanmaomao7 | 1:d9be5eb8bdeb | 33 | if (err == 0) |
lanmaomao7 | 1:d9be5eb8bdeb | 34 | return sensor.ReadTemperature(CELCIUS); |
lanmaomao7 | 1:d9be5eb8bdeb | 35 | else return err; |
lanmaomao7 | 1:d9be5eb8bdeb | 36 | } |
lanmaomao7 | 1:d9be5eb8bdeb | 37 | float Humidity_Sensor_Humidity(){ |
lanmaomao7 | 1:d9be5eb8bdeb | 38 | int err; |
lanmaomao7 | 1:d9be5eb8bdeb | 39 | wait(1); |
lanmaomao7 | 1:d9be5eb8bdeb | 40 | err = sensor.readData(); |
lanmaomao7 | 1:d9be5eb8bdeb | 41 | if (err == 0) |
lanmaomao7 | 1:d9be5eb8bdeb | 42 | return sensor.ReadHumidity(); |
lanmaomao7 | 1:d9be5eb8bdeb | 43 | else return err; |
lanmaomao7 | 1:d9be5eb8bdeb | 44 | } |
lanmaomao7 | 1:d9be5eb8bdeb | 45 | float Humidity_Sensor_Dewpoint(){ |
lanmaomao7 | 1:d9be5eb8bdeb | 46 | int err; |
lanmaomao7 | 1:d9be5eb8bdeb | 47 | wait(1); |
lanmaomao7 | 1:d9be5eb8bdeb | 48 | err = sensor.readData(); |
lanmaomao7 | 1:d9be5eb8bdeb | 49 | if (err == 0) |
lanmaomao7 | 1:d9be5eb8bdeb | 50 | return sensor.CalcdewPoint(sensor.ReadTemperature(CELCIUS), sensor.ReadHumidity()); |
lanmaomao7 | 1:d9be5eb8bdeb | 51 | else return err; |
umairaftab | 0:6e5d3c6e8715 | 52 | } |